2 Common Core Standards
1. On the report card under "Understand three-digit numbers" 2.NBT.1a Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: a. 100 can be thought of as a bundle of ten tens - called a "hundred."
2. On the report card under "Read and write numbers to 1,000 using numerals, number names, and expanded form 2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
2. On the report card under "Read and write numbers to 1,000 using numerals, number names, and expanded form 2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
Grading Rubric
Level 4 | Student generalizes the patterns within the base-ten system to reason about the magnitude of numbers. |
Level 3 | Student consistently demonstrates an understanding of place value. |
Level 2 | Student inconsistently demonstrates an understanding of place value. |
Level 1 | Student does not demonstrate an understanding of place value. |
Ways to Help at Home
When working on math homework, have your child write the expanded form of a number and discuss place value with them.
Example: The expanded form of 147 is 100+40+7. The 1 really stands for 100, because it’s in the hundreds place. The 4 really stands for 40, because it’s in the tens place. The 7 really stands for 7, because it’s in the ones place.
Example: The expanded form of 147 is 100+40+7. The 1 really stands for 100, because it’s in the hundreds place. The 4 really stands for 40, because it’s in the tens place. The 7 really stands for 7, because it’s in the ones place.